Door-operating mechanism.



WI. A C; BLE'ST..

DOOR OPERATING MECHANISM. '1 -APPML'lcATlom yFILED usc. 1s. 1912.

, Patented Nov. 16, 1915.

`4 SHEETS-SHEET 2.

@Inventor WMM moes M. c. BLST. ooR oPERAI|Na-MEcHAN|SM- APPLICATIONFILED DEC. 13. 1912.

Patented Nov. 16, 1915.

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"infr IVIINOT C, BLEST, OF HEGEWISCI-I, ILLNOIS, ASSIGNOR TO PRESSEDSTEEL CAR COM- PANY, F PITTSBURGH, PENNSYLVANIA, A CORPORATION OF 'NEWJERSEY.

DOOR-OPERATING MECHANISM.

To all whom t may concern Be it known that I, MINo'r C. B LEs'r, acitizen of the United States, residing at Hegewis'ch, in. the county ofCook and State of Illinois, have invented certain new and usefulImprovements in Door-Operating Mechanism, of which the following is afull, clear,

and exact description, such as will enable being had to the accompanyingdrawings,

which illustrate the preferred form of the invention, though it is to beunderstood that the invention is not limited to the exact details ofconstruction shown and described, as vit is obvious that variousmodifications thereof willoccur to those skilled in the art.

An object of the present invention is `to provide a. door operatingmechanism for dump cars which will prevent the doors, when closed, fromopening accidentally due -to the heavy shocks to which a car is sub]ectTed, and to produce this result in a more positive. manner than hashitherto been done.

Another object of the present invention is to provide a door operatingmechanism in which the connections between the oper-A ating member andthe doors are composed of a plurality'ofsi'ngle bar links, which linksvare so connected together as to provide for' movement of the same ineither direction.

A further object of the present invention is to provide door operatingmechanism in which the main'door supporting member is so mounted that itwill operate in adirec tion longitudinally of the car and is alsooperatively connected to the doors in such a manner'as to allowvthedoors to drop away from the center sills.

A still further object of the present invention is to provide a-dump carwith a longi tudinal ridge of a novel form which is adapted to protectthe door operating mech anism from damage by the lading, and which willnot reduce the cubic capacity of the car to any great extent.

, In thedrawings Figure 1 shows a plan l View ofa car, portions of thesides and lon'- gitudinal ridge being broken away to more clearly showthe improved door operating mechanism mounted thereon; Fig. 2 shows alongitudinal sectional view on the line 2,-2

of Fig. 1; Fig. 3 shows a cross sectional view on the line 3--3 of Fig.1, and Figs. 4, 5 and Specification of Letters Patent. Patmtd NV, jl,]|L915 Application iiied December 13, 1912. Serial No. 736,540.

6 are detail views of portions of the door operating mechanism, whileFigs. 7, 8 and 9 are similar views of a modification. Fig. 10 is anenlarged sectional view taken on the line 10-10 of Fig. 5.

Referring now in detail to the drawings, in which like referencecharacters refer to like parts and in which: others skilled in the artto which it apper- .tains to make and use the same, reference 1indicates the center sillsv which may be of any suitable form, 2 the carsides, 3 the end plate, 4 the sloping end hopper floor plates, 5 thecross ridge which may be of any suitable constructionand G indicates thesloping sidehopper floor plates, which may` gles from the longitudinalcenter line of the car and where the lower outwardly sloping portionends the plate is sloped downwardly and inwardly and is secured to theweb -of the center sill. This ridge plate is also bent along its bottomedge in such a manner as to prevent lading from lodging on the flange ofthe center sill. These longitudinal vridge plates are also secured tothe sloping end lfloor .plates i and crossridge plates 7.

The lower edges of the end hopper floor plates 4, side hopper Hoorplates 6, cross- 4ridge plates 7 and the longitudinal ridge platesdefine the load discharging openings 9 which are adapted to be closed bydoors -10 which may be hinged along their outer edges l to the sidehopper floor plates 6.

11 indicates brackets which are secured to the doors 10 and extendbeyond the inner edges thereof, `such extensions being provided withthickened or rounded end portions 12. These thickened or rounded endportions are provided with tapered openings 13 through which the ends ofthe bolts 14 may be passed. These bolts are provided with shoe members15 which have curved surfaces 16 and are adapted to engage with and movefreely on the surfaces 17 of the brackets 11 when the doors areoperated.. To hold the shoe members 15 in engagement with the bracket 1lthe ends 'n formed in the link members 2l and may be 'operativelylconnected 'thereto by pms 22.

'These vlink membersarefalso provided with top ortions 23 whichv areadapted. to it loose yjinV the aws 24 formed in the members`25j'and mayvbe operatively connected thereto by 'pins 26. `The members 25 are alsoprovided with jaws 27 at their upper ends, such 4jaws being disposed 'atright angles to the jaws 24 and adapted to receive the ends 28 of themembers 29, said ends and members being :operatively connected tothemember 34. The member 34 is also proy gether by pins 30. The members 29are perforated at 31, such perforation being adaptedto receive pins 32which operatively con- 4neet the said m'ember'sfwiththe arms 33 offvided with a sheave portion 35 for the accommodation ofthe operatingchain 36, land to which portion 35 the arms 33 are integrally connectedby walls 37. These arms besides being connected to the sheave "portionv34, are connected to each other at their top portions by webs 38, andat their bottom portions are provided with laterally extendingprojections or trunnions 39", which may be jo-urnaled in bearing members40 secured to the center sills l.

41 indicates the operating ,shaft which may be'of any suitable sectionand which may be journaled at one end in.bearing members 42 secured tothe ear at or near the sidethereof, and at tlifother end may bejournaled in bearing members 43 secured to the center sills l. Thisbperating shaft at the end nearest the side of the car is pro-` videdwit-h the ordinary ratchet and locking mechanism, and at, the other endportion intermediate the center sills 1, it is provided with a lchainwinding worm 44 to which the free ends of the chain 36 are secured. Thischain besidesbeing secured to the worm 44 extends to and is secured atsubstantially its central portion to the lugs tion 35.

the link members connecting the arms 33 and the brackets 11 may be at orslightly beyond the dead center :of-the sheave portion,

35, as shown in Fig. .5, vso that the weight on the doors will tend toautomatically retain the doors in closed position.

All the parts of the IIlChanism having been described, the operation ofthe same may be described as follows: Assuming the doors to be closedand the car loaded with coal, the operator turns. the operating shaft"inxthe direction of the arrow in Fig. l, whichecauses the chain 36 'topull the arms 33 and the, links connected theretoaway,

'45j'formed in-tegralpwith the j sheave porating mechanism the member 4Gis similar r to the member-,34 shown in the preferred form, with theexception thatlthe arms 33 are made shorter than those shown in thepreferred form and the pin 32 is passed therethrough at a point nearerthe projecff tions 39 than in the preferred form. In the modified formthe link members 21 and 29ers both identical with those of the preferredform, while-two link members 47 and two-'link members 4S the modifiedform which take the place of the two link members 25 as used in thepreferredfform.r The link members 47 are provided with jaws 49-which areadapted to receive loosely the ends of the members 29, such jaws andmember 29 being operatively connected' together by pins 50. The members47- are also provided with jaws -51 which are disposed at substantiallyright angles to the jaws 49 and are adapted to be operatively connectedto the flattened end portions 52 ofthe link members 48 by pins The lowerends of the link members 48 are provided with jaws 54 in which the topportions 23 of the members 21 fit loosel and are operatively connectedthereto by pins 22.

It will be seen that the principle of automatically retaining the doorsin closed posiare provided in tion is the same in both the preferred and,said car, the free ends of said doors contacting with thebottom flangesof said center sills, a sheave member mounted between saidl sills,`armson said sheave member, links connecting said arms with 'said doors, anoperating shaft and flexible means between said operating` shaft andsheave member for operating said arms. v

2. In a dump car, Ithe combination with the center sills of a pair ofvdrop doors hinged to said car and contacting with said center sills,brackets secured to said doors, said brackets extending beyond the freeedges thereof, members loosely mounted within said brackets, a sheavemember mounted between said sills, arms integral with said sheavemember, link members connecting said arms and loosely mounted members,an operating shaft, and fiexible means secured. to said shaft and sheavemember for operating said arms.

3. In a dump icar, the* combination with the center'sills, of a pair ofdoors hinged at Athe sides of said car, the free ends of said,

doors contacting With said center sills, -a

sheave mounted between said sills and bar link means connecting saiddoors and sheave.

4. In adump car,; the combination with' the doors hinged at the sidesthereof, 'of brackets secured to said doors, center sills,

a sheave member mounted between said sills, bar link membersconnectingsaid brackets with said sheave member and means for operatingsaid sheave member.

5. In a dump car, the combination with the center sillsof dropdoorshingedat the sides of said car and contactingwith said center sills,a'sheave member adapted to be operatedin thedir'ection of the length ofVthe car lmounted between said sills, means operable transversely of thecarfcon'necting.

said doors and 'sheave memberv and means for operating said sheavemember.

6. Ina dumpcar, the combinationwithv the center sills of drop doorshinged at the sides of said car and contacting with said center sills, asheave member adapted to be operated in the directionA of the klength ofthe car mounted between said sills, arms'on 'said sheave member, barlink members operable transversely of the car connecting said doors andsheave member, an.. operating shaft and ieXible means operativelyconnected to said shaft and sheave member for `operating said arms. y n.7. In a; dump car, the combinatlon with a drop door hinged thereto, of abracket on said door, said bracket having a thickened end portion, amember loosely mounted in said thickened portion, a shoe on said memberadapted to contact' with and move, freely on said thickened portion,center sills, a sheave member mounted between-said sills, meansoperatively connecting said loosely mounted member and sheave member,`anV operating shaft and means connecting said shaft.l and sheave memberfor operating said doors.

8. Inv a dump car, the combination with drop doors, of brackets on'saiddoors, members loosely mounted in said brackets, shoe "members on saidloosely mounted member adapted to contact with andmove freelyon saidbrackets and means for holding said shoes in contact with said brackets.

lili

the center sills, of a pair of, drop doors hinged'atthe sides of saidcar, the free edges of said doors being adapted to Contact with saidcenter sills, a sheave member arranged between said sills atsubstantially the transverse center line of said doors, adapted tooperate in the direction of the length of the car, links connecting saiddoors and sheave '#'operatable transversely of the car, and means foroperating said sheave-member. l y

In testimony whereof I aflix my signature in'presence of two Witnesses.MINOT C. BLEST.

Witnesses:

`FRED H. HARPEIg, HARRY WEAVER.

